Locking mechanism for the doors of self-discharging receptacles



P.KRUGER. LOCKING MECHANISM FOR THE DOORS 0F SELF DISCHARGING RECEPTACLES.

APPLICATION FILED OCT. [4, 1921.

Patented July 18, 1922.

PATENT fit i ltl PAUL KRll'GER, OF ESSEN, GERMANY, ASSIG-NOR T0 FRIED. KRUPP AK'I'IENGESELL- SCHAFT, OF ESSEN-ON-THE-RUHR, GERMANY.

LOCKING MECHANISM: FOR THE DOORS OF SELF-DISOHARGING REGEPTACLES.

il,d23,129.

Application filed October 14, 1921.

To all whom it may concern:

Be it known that I, PAUL Kniionn, residing at Essen. Germany, a citizen of the German Republic, have invented a certain new and useful Improvement in Looking Mechanism for the Doors of Self-Discharging Receptacles, of which the following is a specification.

This invention relates to self-discharging receptacles in which the discharging opening is formed by two doors. The object of the invention is to provide a very simple and convenient means for locking said doors in their closed position and this in such a manner that the elements, attached to the doors, of the mechanism for operating the discharge doors are considerably released of strain.

An embodiment of the subject-matter ot the invention is illustratodby way of ex ample in the accompanying drawing in which- Figure 1 is an end elevation partially in section of a self-discharging car in the loading position and Figure 2 is a detail of Figure 1 on an enlarged scale.

For the operation of the two discharge doors A, connecting rods B are provided which are connected by bolts a to the respective discharge door, and carry crank arms 6 provided with crank pins 5 These crank pins 5 are adapted to engage in an elongated hole 0 in a bolt C which is mounted by means of another elongated hole 0 on a pin a of the corresponding discharge door A. The bolts C pass through rectangular slots a (see Figure 2) provided in the webs of U-irons a attached at the free edges of the discharge doors A. The bolts C iurthcr have noses c intended to catch, in the loading position, over one of the flanges of the U-iron a of the other discharge door and thereby lock the two doors to each other.

In the loading position of the car the parts assume the relative position shown in the drawing. In this position each discharge door is supported by means of one flange of the U-iron connected to it on the noses c of the bolts C mounted on the other door. The bolts C bear the pressure which is exerted on the discharge doors by the weight of the load and transmit only a comparatively Specification of Letters Patent.

Serial lilo. 507,735.

small turning moment to the connecting rods B, so that these latter are subjected to only a a slight strain, the bolts (1 bearing, under the pressure of the forces acting on them against the pins 0: at the upper ends of the elongated holes 0 When the car is being transferred to the discharging position the crank arms 6 of the connecting rods B rotate in the direction of the arrow as (see Figure This rotary movement is transmitted to the bolts C, so that their noses 0 become lifted oftv the flanges of the Uirons a? and thus release the discharge doors. During the rotation of the bolts C the elongated holes 0 firstly retain their position, relatively to the pins (4? shown in the drawing. In the further course oi their rotation the bolts C strike against the lower edge of the slots a in the U-irons a at'ter which the bolts continue to rotate in such a way that the elongated holes 0 are shifted relatively to the pins o The advantage of the arrangement is that the slots a need only be of slight height so that only the webs of the U-irons a need be provided with a recess.

The manner in which the mechanism works when returned into the loading position requires no description beyond that already given above.

I claim:

1. In a locking mechanism for doors, an operating element for each door, a bolt pivotally secured to each door and pivotally secured to the associated operating element, each bolt engaging in the loading position of the doors behind the edge of the other discharge door.

2. In a locking mechanism tor the doors of self-discharging receptacles, discharge doors, an operating element pivotally mounted on each door, a bolt for each door, means pivotally connecting each operating element to its associate bolt, a pin and slot pivotal connection between each door and its associate bolt, each bolt being adapted to engage behind the edge of the other discharge door in the loading position of the doors.

The foregoing specification signed at Essen, Germany, this 19th day of September, 1921.

PAUL KRUGER.

Patented July 18, 1922.. 

